Evaporator of active substances



FIG. 1 is a perspective view of an embodiment of an evaporator of activesubstances showing my new design;

FIG. 2 is a side view thereof;

FIG. 3 is a back view thereof;

FIG. 4 is a front view thereof; and,

FIG. 5 is a top view thereof.

The ornamental design for an evaporator of active substances, as shownand described.